Self Tamping Coffee Holder

ABSTRACT

A self-tamping coffee holder tamps loose ground coffee obtaining richer flavor. The coffee holder includes a holder base and a holder cap. Coffee is loosely deposited in the coffee holder and the holder cap is attached to the holder base. An internal filter chamber holds the coffee and allows tamping of the coffee into a compacted state. The filter chamber may be formed by a fixed filter or by a removeable filter constructed of filter paper, nylon mesh, metal mesh, or any material capable of holding the coffee while allowing a flow of heated water through the coffee. The tamping may be by a spring or by a resilient solid material attached to the coffee holder and may push the coffee down inside the filter or push the filter and the coffee up against the holder lid.

The present application is a Continuation In Part of U.S. patent application Ser. No. 12/610,181 filed Oct. 30, 2009, which application is incorporated in its entirety herein by reference.

BACKGROUND OF THE INVENTION

The present invention relates to coffee makers and in particular to a coffee maker utilizing a stream of hot water through tamped ground coffee.

Coffee is generally prepared in a coffee maker by measuring an amount of ground coffee into a coffee filter, closing a lid over the ground coffee, and providing a stream of hot water through the loosely packed ground coffee. Unfortunately, water passes freely through the loosely packed ground coffee and does not obtain the full flavor which might otherwise be obtained.

U.S. patent application Ser. No. 11/777,831 filed Jul. 13, 2007 for “Pod Adapter System for Single Service Beverage Brewers” by the present applicant overcomes this problem by packaging the coffee in closed filter paper commonly called a pod, and inserting the closed pod into a pod holder including a tamping spring and bottom tamper for tamping the pod between the bottom tamper and a coffee holder lid. While the pod adapter of the '831 application works well for coffee pods, it does not allow the simple use of bulk ground coffee not packaged in the closed pod.

BRIEF SUMMARY OF THE INVENTION

The present invention addresses the above and other needs by providing a self-tamping coffee holder which tamps loose ground coffee obtaining richer flavor. The coffee holder includes a holder base and a holder cap. Coffee is loosely deposited in the coffee holder and the holder cap is attached to the holder base. An internal filter chamber holds the coffee and allows tamping of the coffee into a compacted state. The filter chamber may be formed by a fixed filter or by a removeable filter constructed of filter paper, nylon mesh, metal mesh, or any material capable of holding the coffee while allowing a flow of heated water through the coffee. The tamping may be by a spring or by a resilient solid material attached to the coffee holder and may push the coffee down inside the filter or push the filter and the coffee up against the holder li

In accordance with one aspect of the invention, there is provided a coffee making system for tamping coffee. The coffee holder receives a portion of untamped coffee and a holder lid closes the coffee holder after receiving the untamped coffee. A tamper resides inside the coffee holder and tamps the coffee after the holder lid is closed. After tamping, the coffee holder is places into a suitable coffee maker. A hot water nozzle is attached to the coffee maker for providing a flow of hot water to the tamped coffee to make a coffee drink.

In accordance with another aspect of the invention, there is provided

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

The above and other aspects, features and advantages of the present invention will be more apparent from the following more particular description thereof, presented in conjunction with the following drawings wherein:

FIG. 1A is a front view of a coffee maker according to the present invention.

FIG. 1B is a side view of the coffee maker according to the present invention.

FIG. 1C is a top view of the coffee maker according to the present invention.

FIG. 2 is a side view of the coffee maker with an open lid allowing placement of a coffee holder according to the present invention inside the coffee maker.

FIG. 2A is a functional diagram of the coffee maker.

FIG. 3 is a side view of a first coffee holder according to the present invention.

FIG. 4 is a cross-sectional side view of the first coffee holder according to the present invention taken along line 4-4 of FIG. 3.

FIG. 5A is a cross-sectional side view of the first coffee holder according to the present invention taken along line 4-4 of FIG. 3 showing an empty coffee holder with the tamping spring and the bottom tamper according to the present invention.

FIG. 5B is a cross-sectional side view of the first coffee holder according to the present invention taken along line 4-4 of FIG. 3 showing the coffee holder with the tamping spring and bottom tamper, a portion of coffee, and the holder lid ready to attach to a holder body according to the present invention.

FIG. 5C is a cross-sectional side view of the first coffee holder according to the present invention taken along line 4-4 of FIG. 3 showing the coffee holder with the tamping spring and bottom tamper, the portion of coffee in the coffee holder, and the holder lid ready to attach to the holder body according to the present invention.

FIG. 5D is a cross-sectional side view of the first coffee holder according to the present invention taken along line 4-4 of FIG. 3 showing the coffee holder with the tamping spring and bottom tamper, the portion of coffee in the coffee holder, and the holder lid attached to the coffee holder body, according to the present invention.

FIG. 6 is a top view of the first holder lid.

FIG. 7A is a side view of a filter paper cup according to the present invention.

FIG. 7B is a top view of the filter paper cup according to the present invention.

FIG. 7C is a second embodiment of the filter paper cup with a lid.

FIG. 8A shows the first coffee holder ready for insertion into the coffee maker.

FIG. 8B shows the first coffee holder inserted into the coffee maker before tamping the coffee.

FIG. 8C shows the first coffee holder inserted into the coffee maker after tamping the coffee.

FIG. 9 is a side view of a second coffee holder according to the present invention.

FIG. 10 is a cross-sectional side view of the second coffee holder according to the present invention taken along line 10-10 of FIG. 9.

FIG. 11A is a cross-sectional side view of the second coffee holder according to the present invention taken along line 10-10 of FIG. 9 showing an empty coffee holder with the tamping spring and the top tamper according to the present invention.

FIG. 11B is a cross-sectional side view of the second coffee holder according to the present invention taken along line 10-10 of FIG. 9 showing the coffee holder with the holder lid, tamping spring and top tamper, and a portion of coffee, ready to attach according to the present invention.

FIG. 11C is a cross-sectional side view of the second coffee holder according to the present invention taken along line 10-10 of FIG. 9 showing the portion of untamped coffee in the coffee holder, and the holder lid, tamping spring and top tamper, ready to attach to the holder base, according to the present invention.

FIG. 11D is a cross-sectional side view of the second coffee holder according to the present invention taken along line 10-10 of FIG. 9 showing the portion of coffee in the coffee holder and the tamping spring, top tamper, and the holder lid attached to the coffee holder, according to the present invention.

FIG. 12 is a top view of the second holder lid.

FIG. 13 is a top view of the bottom tamper.

FIG. 14A shows the second coffee holder ready for insertion into the coffee maker.

FIG. 14B shows the second coffee holder inserted into the coffee maker before tamping the coffee.

FIG. 14C shows the second coffee holder inserted into the coffee maker after tamping the coffee.

FIG. 15 is a side view of a third coffee holder according to the present invention.

FIG. 16 is a cross-sectional side view of the third coffee holder according to the present invention taken along line 16-16 of FIG. 15.

FIG. 17A is a cross-sectional side view of the third coffee holder according to the present invention taken along line 16-16 of FIG. 15 showing the portion of coffee above the coffee holder and the top tamper and the holder lid ready to attach to the coffee holder, according to the present invention.

FIG. 17B is a cross-sectional side view of the third coffee holder according to the present invention taken along line 16-16 of FIG. 15 showing the portion of coffee in the coffee holder, and the top tamper and the holder lid ready to attach to the coffee holder, according to the present invention.

FIG. 17C is a cross-sectional side view of the third coffee holder according to the present invention taken along line 16-16 of FIG. 15 showing the portion of coffee in the coffee holder, and the bottom tamper, the top tamper, and the holder lid attached to the coffee holder, according to the present invention.

FIG. 18A shows the third coffee holder ready for insertion into a second coffee maker according to the present invention.

FIG. 18B shows the third coffee holder inserted into the coffee maker before tamping the coffee.

FIG. 18C shows the third coffee holder inserted into the coffee maker after tamping the coffee.

FIG. 19 is a side view of a fourth coffee holder according to the present invention.

FIG. 20 is a cross-sectional side view of the fourth coffee holder according to the present invention taken along line 20-20 of FIG. 19.

FIG. 21A is a cross-sectional side view of the fourth coffee holder according to the present invention taken along line 20-20 of FIG. 19 showing the coffee holder with the bottom tamper, a portion of coffee, and the holder lid ready to attach, according to the present invention.

FIG. 21B is a cross-sectional side view of the fourth coffee holder according to the present invention taken along line 20-20 of FIG. 19 showing the coffee holder with the bottom tamper, a portion of coffee in the coffee holder, and the holder lid ready to attach, according to the present invention.

FIG. 21C is a cross-sectional side view of the fourth coffee holder according to the present invention taken along line 20-20 of FIG. 19 showing the coffee holder with the bottom tamper, a portion of coffee in the coffee holder, and the holder lid attached, according to the present invention.

FIG. 22A shows the fourth coffee holder ready for insertion into the coffee maker.

FIG. 22B shows the fourth coffee holder inserted into the coffee maker before tamping the coffee.

FIG. 22C shows the fourth coffee holder inserted into the coffee maker after tamping the coffee.

FIG. 23A shows the fourth coffee holder ready for insertion into the coffee maker having a tamping block according to the present invention.

FIG. 23B shows the fourth coffee holder inserted into the coffee maker having the tamping block before tamping the coffee.

FIG. 23C shows the fourth coffee holder inserted into the coffee maker having the tamping block after tamping the coffee.

FIG. 24 is a side view of a fifth coffee holder according to the present invention.

FIG. 25 is a cross-sectional side view of the fifth coffee holder according to the present invention taken along line 25-25 of FIG. 24.

FIG. 26A is a cross-sectional side view of the fifth coffee holder according to the present invention taken along line 25-25 of FIG. 24 showing the portion of coffee above the coffee holder body, and the holder lid with the top tamper and tamping spring, ready to attach to the coffee holder body, according to the present invention.

FIG. 26B is a cross-sectional side view of the fifth coffee holder according to the present invention taken along line 25-25 of FIG. 24 showing the coffee holder with the portion of coffee in the coffee holder, and the holder lid with the top tamper and tamping spring ready to attach to the coffee holder body, according to the present invention.

FIG. 26C is a cross-sectional side view of the fifth coffee holder according to the present invention taken along line 25-25 of FIG. 24 showing the portion of coffee in the coffee holder, and the holder lid with the top tamper and tamping spring attached to the holder body, according to the present invention.

FIG. 27 is a side view of a sixth coffee holder according to the present invention.

FIG. 28 is a cross-sectional side view of the sixth coffee holder according to the present invention taken along line 28-28 of FIG. 27.

FIG. 29A is a cross-sectional side view of the sixth coffee holder according to the present invention taken along line 28-28 of FIG. 27 showing the portion of coffee above the coffee holder, and the holder lid ready to attach to the holder body, according to the present invention.

FIG. 29B is a cross-sectional side view of the sixth coffee holder according to the present invention taken along line 28-28 of FIG. 27 showing the portion of coffee in the coffee holder, and the holder lid ready to attach to the holder body, according to the present invention.

FIG. 29C is a cross-sectional side view of the sixth coffee holder according to the present invention taken along line 28-28 of FIG. 27 showing the portion of coffee in the coffee holder, and the holder lid attached and tamping the coffee, according to the present invention.

FIG. 30 is a side view of a seventh coffee holder according to the present invention.

FIG. 31 is a cross-sectional side view of the seventh coffee holder according to the present invention taken along line 31-31 of FIG. 30.

FIG. 32A is a cross-sectional side view of the seventh coffee holder according to the present invention taken along line 31-31 of FIG. 30 showing the portion of coffee above the coffee holder, and the holder lid ready to attach to the holder body, according to the present invention.

FIG. 32B is a cross-sectional side view of the seventh coffee holder according to the present invention taken along line 31-31 of FIG. 30 showing the portion of coffee in the coffee holder, and the holder lid ready to attach to the holder body, according to the present invention.

FIG. 32C is a cross-sectional side view of the seventh coffee holder according to the present invention taken along line 31-31 of FIG. 30 showing the portion of coffee in the coffee holder, and the holder lid attached to the holder body and the coffee tamped between the bottom tamper and spring and the holder lid, according to the present invention.

FIG. 33 is a side view of an eighth coffee holder according to the present invention.

FIG. 34A is a cross-sectional side view of the eighth coffee holder taken along line 34-34 of FIG. 33 showing a portion of coffee for placing inside the coffee holder and the holder lid with an insertable portion and an O-Ring inside the coffee holder for sealing according to the present invention.

FIG. 34B is a cross-sectional side view of the eighth coffee holder taken along line 34-34 of FIG. 33 showing the portion of coffee inside the coffee holder and the holder lid with the insertable portion inserted into the coffee holder and cooperating with the O-Ring inside the coffee holder for sealing.

FIG. 35 is a side view of a ninth coffee holder according to the present invention.

FIG. 36A is a cross-sectional side view of the ninth coffee holder taken along line 36-36 of FIG. 35 showing a portion of coffee for placing inside the coffee holder and a holder lid with a threaded portion for screwing inside the holder body for sealing according to the present invention.

FIG. 36B is a cross-sectional side view of the ninth coffee holder taken along line 36-36 of FIG. 35 showing the portion of coffee inside the coffee holder and a holder lid with the threaded portion screwed into the holder body and tamping the coffee according to the present invention.

FIG. 37A shows a third coffee maker having a coffee holder for receiving a portion of coffee and tamping spring according to the present invention for tamping the coffee when the coffee maker lid is closed.

FIG. 37B shows the third coffee maker with the coffee holder holding the portion of coffee and the tamping spring under the coffee holder according to the present invention for tamping the coffee when the coffee maker lid is closed.

FIG. 37C shows the third coffee maker with the coffee holder holding the portion of tamped coffee with the coffee maker lid closed for tamping the coffee according to the present invention.

FIG. 38A shows a third coffee maker having a coffee holder for receiving a portion of coffee and tamping spring attached to the coffee maker lid according to the present invention for tamping the coffee when the coffee maker lid is closed.

FIG. 38B shows the third coffee maker with the coffee holder holding the portion of untamped coffee according to the present invention for tamping the coffee when the coffee maker lid is closed.

FIG. 38C shows the third coffee maker with the coffee holder holding the portion of tamped coffee with the coffee maker lid closed to push the tamping spring into the coffee holder for tamping the coffee according to the present invention.

FIG. 39A shows a fourth coffee maker having a coffee holder for receiving a packet containing untamped coffee, a knife for cutting the packet open, and tamping spring attached to the coffee maker lid according to the present invention for tamping the coffee when the coffee maker lid is closed.

FIG. 39B shows the fourth coffee maker with the coffee holder holding the packet of untamped coffee according to the present invention for tamping the coffee when the coffee maker lid is closed.

FIG. 39C shows the fourth coffee maker with the coffee holder holding the packet of tamped coffee with the coffee maker lid closed to push the tamping spring into the coffee holder for tamping the coffee according to the present invention.

FIG. 40A shows a fifth coffee maker accepting a horizontal coffee holder and tamping spring residing horizontally in a coffee holder cavity according to the present invention for tamping the coffee when the coffee maker lid is closed.

FIG. 40B shows the fifth coffee maker with the coffee holder residing horizontally in the coffee holder cavity according to the present invention for tamping the coffee when the coffee maker lid is closed.

FIG. 40C shows the fifth coffee maker with the coffee holder residing horizontally in the coffee holder cavity with the coffee maker lid closed and the coffee holder pushed against the tamping spring for tamping the coffee, according to the present invention.

FIG. 41 is a side view of a tenth coffee holder with straight walls according to the present invention.

FIG. 42 is a cross-sectional view of the tenth coffee holder taken along line 42-42 of FIG. 41 showing an empty coffee holder.

FIG. 43 is a cross-sectional view of the tenth coffee holder taken along line 42-42 of FIG. 41 showing a full and tamped coffee holder.

FIG. 44 is a side view of an eleventh coffee holder with straight walls according to the present invention.

FIG. 45 is a cross-sectional view of the eleventh coffee holder taken along line 45-45 of FIG. 44 showing an empty coffee holder.

FIG. 46 is a cross-sectional view of the eleventh coffee holder taken along line 45-45 of FIG. 41 showing a full and tamped coffee holder.

FIG. 47A is a side view of a top tamper.

FIG. 47B is a top view of the top tamper.

FIG. 47C is a side view of a top tamper with a seal according to the present invention.

FIG. 47D is a top view of the top tamper with a seal.

FIG. 48 is a perspective view of a filter paper cup with a folding cup lid.

FIG. 49 is a side view of an twelfth coffee holder with straight walls according to the present invention.

FIG. 50 is a cross-sectional view of the twelfth coffee holder taken along line 50-50 of FIG. 49 showing an empty coffee holder.

FIG. 51A is a cross-sectional view of the twelfth coffee holder taken along line 50-50 of FIG. 49 showing a lid, coffee, a filter paper cup, above the base, and the coffee holder base.

FIG. 51B is a cross-sectional view of the twelfth coffee holder taken along line 50-50 of FIG. 49 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base.

FIG. 51C is a cross-sectional view of the twelfth coffee holder taken along line 50-50 of FIG. 49 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base with a filter paper cover folded over the coffee in the filter paper cup.

FIG. 51D is a cross-sectional view of the twelfth coffee holder taken along line 50-50 of FIG. 49 showing the lid attached to the base with the coffee and the filter paper cup residing in the coffee holder base with the coffee tamped.

FIG. 52 is a side view of a thirteenth coffee holder with a releaseable tamping latch according to the present invention.

FIG. 53 is a cross-sectional view of the thirteenth coffee holder taken along line 53-53 of FIG. 52 showing an empty coffee holder.

FIG. 54A is a cross-sectional view of the thirteenth coffee holder taken along line 53-53 of FIG. 52 showing a lid, coffee, a filter paper cup, above the base, and the coffee holder base, with the tamping latch retaining the bottom tamper.

FIG. 54B is a cross-sectional view of the thirteenth coffee holder taken along line 53-53 of FIG. 52 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base, with the tamping latch retaining the bottom tamper.

FIG. 54C is a cross-sectional view of the thirteenth coffee holder taken along line 53-53 of FIG. 52 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base with the tamping latch retaining the bottom tamper.

FIG. 54D is a cross-sectional view of the fourteenth coffee holder taken along line 53-53 of FIG. 52 showing the lid attached to the base with the coffee and the filter paper cup residing in the coffee holder base with tamping latch released and the coffee tamped.

FIG. 55 is a side view of a fourteenth coffee holder with a releaseable tamping latch according to the present invention.

FIG. 56 is a cross-sectional view of the fourteenth coffee holder taken along line 56-56 of FIG. 55 showing an empty coffee holder.

FIG. 57A is a cross-sectional view of the fourteenth coffee holder taken along line 56-56 of FIG. 55 showing a lid, coffee, a filter paper cup, above the base, and the coffee holder base, with the tamping latch retaining the bottom tamper.

FIG. 57B is a cross-sectional view of the fourteenth coffee holder taken along line 56-56 of FIG. 55 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base, with the tamping latch retaining the bottom tamper.

FIG. 57C is a cross-sectional view of the fourteenth coffee holder taken along line 56-56 of FIG. 55 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base, with the tamping latch released but just prior to tamping.

FIG. 57D is a cross-sectional view of the fourteenth coffee holder taken along line 56-56 of FIG. 55 showing the lid attached to the base with the coffee and the filter paper cup residing in the coffee holder base with tamping latch released and the coffee tamped.

FIG. 58 is a side view of a fourteenth coffee holder with a releaseable tamping lock according to the present invention.

FIG. 59 is a cross-sectional view of the fourteenth coffee holder taken along line 59-59 of FIG. 58 showing an empty coffee holder.

FIG. 60A is a cross-sectional view of the fourteenth coffee holder taken along line 59-59 of FIG. 58 showing a lid, coffee, a filter paper cup, above the base, and the coffee holder base, with the tamping lock retaining the bottom tamper.

FIG. 60B is a cross-sectional view of the fourteenth coffee holder taken along line 59-59 of FIG. 58 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base, with the tamping lock retaining the bottom tamper.

FIG. 60C is a cross-sectional view of the fourteenth coffee holder taken along line 59-59 of FIG. 58 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base prior to tamping.

FIG. 60D is a cross-sectional view of the fourteenth coffee holder taken along line 59-59 of FIG. 58 showing the lid attached to the base with the coffee and the filter paper cup residing in the coffee holder base with tamping lock released and the coffee tamped.

FIG. 61 is a top view of a lock according to the present invention.

FIG. 62 is a bottom view of a second bottom tamper with cooperates with the tamping lock according to the present invention.

FIG. 63A is a side view of a filter cup according to the present invention.

FIG. 63B is a top view of the filter cup according to the present invention.

Corresponding reference characters indicate corresponding components throughout the several views of the drawings.

DETAILED DESCRIPTION OF THE INVENTION

The following description is of the best mode presently contemplated for carrying out the invention. This description is not to be taken in a limiting sense, but is made merely for the purpose of describing one or more preferred embodiments of the invention. The scope of the invention should be determined with reference to the claims.

A front view of a coffee 10 maker according to the present invention is shown in FIG. 1A a side view of the coffee maker 10 is shown in FIG. 1B, and a top view of the coffee maker 10 is shown in FIG. 1C. The coffee maker 10 includes a body 12, an opening lid 14, a lid handle 16, a water container 18, a display 20, controls 22, and platform 24. A coffee pitcher 26 rests on the platform 24 and has a pitcher lid 28. The coffee maker 10 provides a flow of hot water through coffee grounds to produce a coffee drink. The flow of water may be heated by one of any known means, for example, an electrical heating coil or a conductive coating on tubing carrying the water.

A side view of the coffee maker 10 with an open lid 14 allowing placement of a coffee holder 30 according to the present invention inside the coffee maker 10 is shown in FIG. 2. The lid 14 includes a lid hinge 14 a and a water tube 15 carries heated water into the lid 14. A pad 17 resides on a bottom surface of the lid 14 and presses against the coffee holder 30 when the lid 14 is closed, and in cooperation with other means discloses hereafter, tamps coffee contained in the coffee holder 30. A nozzle 19 extending down from the closed lid 14 directs the flow of hot water into the coffee holder 30.

A functional diagram of the coffee maker 10 is shown in FIG. 2A. The preferred coffee maker 10 includes the water tank 18, water pump 21, a heater 13, check valve 23 and the nozzle 18. The pump 21 preferably provides at least one PSI water pressure. The water heater 13 may include a heating coil or a resistive coating or any other means for heating water. The check valve 23 limits the water pressure at the nozzle 19 by returning some of the water flow to the water tank 18. While a the water pump 21 is a preferred method for providing a flow of water to the nozzle 19, other methods include pressuring the water in the water tank 18, and a coffee maker using any means to provide a forced flow of water is intending to within the scope of the present invention.

A side view of a first coffee holder 30 a according to the present invention is shown in FIG. 3 and a cross-sectional side view of the first coffee holder 30 a including a holder body 31, a first holder lid 32 a, a bottom tamper 34, and a tamping spring 36 according to the present invention taken along line 4-4 of FIG. 3 is shown in FIG. 4. A volume (or coffee holder interior) 38 is provided inside the coffee holder 30 a to receive loose coffee 41. A passage 33 in the lid 32 a is provided for the nozzle 19 (see FIG, 2).

A cross-sectional side view of the first coffee holder 30 a taken along line 4-4 of FIG. 3 showing an empty coffee holder 30 a with the tamping spring 36 and the bottom tamper 34 ready for filling are shown in FIG. 5A. A cross-sectional side view of the first coffee holder 30 a taken along line 4-4 of FIG. 3 showing the coffee holder 30 a with the tamping spring 36 and bottom tamper 34, a portion of loose coffee 41, and the holder lid 32 a ready to attach is shown in FIG. 5B. A cross-sectional side view of the first coffee holder 30 a taken along line 4-4 of FIG. 3 showing the coffee holder 30 a with the tamping spring 36 and bottom tamper 34, a portion of coffee in the volume 38, and the holder lid 32 a ready to attach is shown in FIG. 5C. A cross-sectional side view of the first coffee holder 30 a taken along line 4-4 of FIG. 3 showing the coffee holder 30 a with the tamping spring 36 and bottom tamper 34, a portion of loose coffee 41 in the volume 38, and the holder lid 32 a attached to the coffee holder 30 a, is shown in FIG. 5D.

A top view of the first holder lid 32 a showing the passage 33 provided for the nozzle 19 (see FIG. 2) is shown in FIG. 6.

A side view of a filter paper cup 40 according to the present invention is shown in FIG. 7A and a top view of the filter paper cup 40 is shown in FIG. 7B. The filter paper cup 40 includes a bottom 40 b, sides 40 a, and a rim 40 c. The rim 40 c rests on a top edge of the holder body 31 and is held between the holder cap and body when the cap is placed on the body, thereby preventing or restricting the escape of coffee 41 from the cup 40 when hot water flows into the coffee holder 30 a.

A second embodiment of the filter paper cup 40′ with a folding paper lid 40 d is shown in FIG. 7C. The lid 40 d of the filter paper cup 40′ may be folded over the cup 40′ after loose coffee is poured into the cup. The lid 40 d preferably includes a perforation 40 e centered on the lid 40 d allowing the nozzle 19 to enter and/or inject the hot flow of water into the tamped coffee 41.

The filter cups may be made from several materials including filter paper, nylon mesh, steel mesh, or any material suitable for filtration.

The first coffee holder 30 a is shown ready for insertion into a first coffee maker 10 a in FIG. 8A, the first coffee holder 30 a is shown inserted into the coffee maker 10 before tamping the coffee 41 in FIG. 8B, and the first coffee holder 30 a is shown in the coffee maker 10 after tamping the coffee 41 in FIG. 8C. The coffee maker includes a cavity 11 for accepting the coffee holder and has walls 11 a for aligning the coffee holder in the coffee maker. When the lid 14 is closed, the pad 17 on the bottom of the lid 14 and/or arms 25 attached to the bottom of the lid 25, push the coffee holder 30 a down over the tamping spring 36 and the coffee 41 is tamped between the lid 32 a and the bottom tamper 34. The arms 25 push the coffee holder 30 a down ahead of the nozzle 19 thereby seating the coffee holder 30 a in the cavity 11 for alignment of the nozzle 10 with the passage 33 in the lid 32 a.

A side view of a second coffee holder 30 b according to the present invention is shown in FIG. 9 and a cross-sectional side view of the second coffee holder 30 b taken along line 10-10 of FIG. 9 is shown in FIG. 10. The coffee holder 30 b includes the holder body 31, a second holder lid 32 b, a tamping spring 36, a spring washer 35 a, and a top tamper 35 b.

A cross-sectional side view of the second coffee holder 30 b taken along line 10-10 of FIG. 9 showing an empty coffee holder 30 b is shown in FIG. 11A. A cross-sectional side view of the second coffee holder 30 b taken along line 10-10 of FIG. 9 showing the holder lid 32 b and a loose portion of coffee 41 above the empty coffee holder 30 b is shown in FIG. 11B. A cross-sectional side view of the second coffee holder 30 b taken along line 10-10 of FIG. 9 showing the holder lid 32 b above the coffee holder 30 b with the portion of loose coffee 41 in the coffee holder 32 b is shown in FIG. 11C. A cross-sectional side view of the second coffee holder 32 b taken along line 10-10 of FIG. 9 showing the coffee holder with the holder lid 32 b attached to the coffee holder 30 b and a portion of loose coffee 41 in the coffee holder 30 b is shown in FIG. 11D. The tamping spring 36 extends upward out of the coffee holder 30 b for tamping the loose coffee as disclosed hereafter.

A top view of the second holder lid 32 b is shown in FIG. 12. The holder lid 32 b includes a larger passage 33 a allowing passage of the tamping spring 36 through the holder lid 32 b.

A top view of the bottom tamper 34 is shown in FIG. 13. The bottom tamper 34 includes perforations 34 a to allow coffee drink to pass through the bottom tamper 34.

The second coffee holder 30 b is shown ready for insertion into the coffee maker 10 in FIG. 14A, the second coffee holder 30 b is shown inserted into the coffee maker 10 before tamping the coffee 41 in FIG. 14B, and the second coffee holder 30 b is shown in the coffee maker 10 after tamping the coffee 41 in FIG. 14C. The coffee maker 10 may include a long nozzle 19 a to reach the top tamper 35 b for “injection” of the heated water into the tamped coffee, but may also include the nozzle 19 and the heated water may pass through the coffee 41 under the pull of gravity.

A side view of a third coffee holder 30 c according to the present invention is shown in FIG. 16 and a cross-sectional side view of the third coffee holder 30 c taken along line 16-16 of FIG. 15 is shown in FIG. 16. The coffee holder 30 c includes the holder body 31, the second holder lid 32 b, the bottom tamper 34, and the top tamper 35 b.

A cross-sectional side view of the third coffee holder 30 c taken along line 16-16 of FIG. 15 showing the coffee holder 30 c with the holder lid 32 b, the top tamper 35 b, and a portion of coffee, ready to attach to the holder 31, is shown in FIG. 17A. A cross-sectional side view of the third coffee holder taken along line 16-16 of FIG. 15 showing the coffee holder 30 c with the holder lid 32 b and the top tamper ready to attach, and a portion of coffee 41 in the coffee holder, is shown in FIG. 17B. A cross-sectional side view of the third coffee holder 30 c taken along line 16-16 of FIG. 15 showing the coffee holder with the holder lid and the top tamper attached and a loose portion of coffee 41 in the coffee holder is shown in FIG. 17C. The coffee holder 30 c is configured to use with a coffee make 10 b (see FIGS. 18A-18C) including apparatus for entering the coffee holder for tamping the loose coffee 41.

The third coffee holder 30 c ready for insertion into a second coffee maker 10 b in FIG. 18A, the third coffee holder 30 c is shown residing in the coffee maker 10 b before tamping the coffee 41 in FIG. 18B, and the third coffee holder 30 c is shown residing in the coffee maker 10 b after tamping the coffee 41 in FIG. 18C. The coffee maker 10 b includes the tamping spring 36 attached to the pad 17 on the bottom of the lid 14. When the lid 14 is closed the tamping spring 36 enters the coffee holder 30 c through the lid passage 33 a (see FIG. 12) and pushes the top tamper 35 b against the coffee 41 to tamp the coffee 41.

A side view of a fourth coffee holder 30 d according to the present invention is shown in FIG. 19 and a cross-sectional side view of the fourth coffee holder 30 d taken along line 20-20 of FIG. 19 is shown in FIG. 20. The coffee holder 30 d includes the holder body 31, the first holder lid 32 a, and the bottom tamper 34.

A cross-sectional side view of the fourth coffee holder 30 d taken along line 20-20 of FIG. 19 showing the coffee holder with the bottom tamper 34, and a portion of coffee 41 and the holder lid ready to attach is shown in FIG. 21A. A cross-sectional side view of the fourth coffee holder 30 d taken along line 20-20 of FIG. 19 showing the coffee holder 30 d with the bottom tamper 34, the portion of coffee 41 in the coffee holder 30 d, and the holder lid 32 a ready to attach is shown in FIG. 21B. A cross-sectional side view of the fourth coffee holder 30 d taken along line 20-20 of FIG. 19 showing the coffee holder 30 d with the bottom tamper 34, a portion of coffee in the coffee holder 41, and the holder lid 32 a is shown in FIG. 21C.

The fourth coffee holder 30 d ready for insertion into another embodiment of the second coffee maker 10 b in FIG. 22A, the fourth coffee holder 30 d is shown residing in the coffee maker 10 b before tamping the coffee 41 in FIG. 22B, and the fourth coffee holder 30 d is shown residing in the coffee maker 10 b after tamping the coffee 41 in FIG. 22C. The coffee maker 10 b may include the tamping spring 36 residing in the bottom of the coffee holder cavity 11. When the lid 14 is closed, the pad 17 pushed the coffee holder 30 d down over the tamping spring 36 and the tamping spring 36 enters the coffee holder 30 c through the bottom of the holder body 31 and pushes the bottom tamper 34 against the coffee 41 to tamp the coffee 41.

The fourth coffee holder 30 d ready for insertion into another embodiment of the second coffee maker 10 b in FIG. 23A, the fourth coffee holder 30 d is shown residing in the coffee maker 10 b before tamping the coffee 41 in FIG. 23B, and the fourth coffee holder 30 d is shown residing in the coffee maker 10 b after tamping the coffee 41 in FIG. 23C. The coffee maker 10 b may include a resilient solid block 42 residing in the bottom of the coffee holder cavity 11. When the lid 14 is closed, the pad 17 pushed the coffee holder 30 d down over the resilient solid block 42 and the resilient solid block 42 enters the coffee holder 30 c through the bottom of the holder body 31 and pushes the bottom tamper 34 against the coffee 41 to tamp the coffee 41.

A side view of a fifth coffee holder 30 e according to the present invention is shown in FIG. 24 and a cross-sectional side view of the fifth coffee holder 30 e taken along line 25-25 of FIG. 24 is shown in FIG. 25. The fifth coffee holder 30 e includes the holder body 31, the holder lid 32 b, the tamping spring 36 and the top tamper 35 b attached to the holder lid 32 a.

A cross-sectional side view of the fifth coffee holder 30 e taken along line 25-25 of FIG. 24 showing the coffee holder 30 e with a portion of coffee 41, and the holder lid 32 b with the top tamper 35 b and tamping spring 36 attached, above the holder body 31, is shown in FIG. 26A. A cross-sectional side view of the fifth coffee holder 30 e taken along line 25-25 of FIG. 24 showing the coffee holder with the portion of coffee 41 in the coffee holder, and the holder lid 32 b with the top tamper 35 b and tamping spring 36 attached, above the holder body 31, is shown in FIG. 26B. A cross-sectional side view of the fifth coffee holder 30 e taken along line 25-25 of FIG. 24 showing the coffee holder 30 e with the portion of coffee 41 in the coffee holder 30 e, and the holder lid 32 b with the top tamper 35 b and tamping spring 36 attached to the holder base 31 is shown in FIG. 26D. The tamping spring 36 and top tamper 35 b tamp the coffee 41 to provide a tamped coffee when the holder lid 32 b is attached to the holder base 31.

A side view of a sixth coffee holder 30 f according to the present invention is shown in FIG. 27 and a cross-sectional side view of the sixth coffee holder 30 f taken along line 28-28 of FIG. 27 is shown in FIG. 28. The sixth coffee holder 30 f includes the holder body 31 and a third holder lid 32 c. The third holder lid 32 c includes a recessed portion 32′ which reaches into the interior of the sixth coffee holder 30 f. The recessed portion 32′ is preferably a solid resilient material.

A cross-sectional side view of the sixth coffee holder 30 f taken along line 28-28 of FIG. 27 showing the sixth coffee holder 30 f with a portion of coffee 41, and the holder lid 32 c, above the holder body 31, is shown in FIG. 29A. A cross-sectional side view of the sixth coffee holder 30 f taken along line 28-28 of FIG. 27 showing the coffee holder with the portion of coffee 41 in the coffee holder, and the holder lid 32 c above the holder body 31, is shown in FIG. 29B. A cross-sectional side view of the sixth coffee holder 30 f along line 28-28 of FIG. 27 showing the sixth coffee holder 30 f with the portion of coffee 41 in the coffee holder 30 e, and the holder lid 32 e attached to the holder base 31 is shown in FIG. 26D. A cushion 32′ tamps the coffee 41 to provide a tamped coffee when the holder lid 32 e is attached to the holder base 31. The cushion 32′ is preferably made from a resilient material to cushion the tamping of the loose coffee.

A side view of a seventh coffee holder 30 g according to the present invention is shown in FIG. 30 and a cross-sectional side view of the seventh coffee holder 30 g taken along line 31-31 of FIG. 30 is shown in FIG. 31. The seventh coffee holder 30 g includes the holder body 31, the holder lid 32 b, the tamping spring 36, and the bottom tamper 34 inside the holder base 31.

A cross-sectional side view of the seventh coffee holder 30 g taken along line 31-31 of FIG. 30 showing the seventh coffee holder 30 g with a portion of coffee 41 and the holder lid 32 a above the holder body 31, and with the bottom tamper 34 and tamping spring 36 inside the holder base 31, is shown in FIG. 26A. A cross-sectional side view of the seventh coffee holder 30 g taken along line 31-31 of FIG. 30 showing the coffee holder with the portion of coffee 41 in the filter paper 40 in the holder base 31 resting on the bottom tamper 34 supported by the tamping spring 36, and the holder lid 32 a above the holder body 31, is shown in FIG. 26B. A cross-sectional side view of the seventh coffee holder 30 g taken along line 31-31 of FIG. 30 showing the seventh coffee holder 30 g with the portion of coffee 41 in the coffee holder 30 e, and the holder lid 32 a attached to the holder base 31, is shown in FIG. 26D. The tamping spring 36 and bottom tamper 34 tamp the coffee 41 upward against the tamper lid 32 a to provide a tamped coffee when the holder lid 32 a is attached to the holder base 31.

A side view of an eighth coffee holder 30 h according to the present invention is shown in FIG. 33, a cross-sectional side view of the eighth coffee holder 30 h taken along line 34-34 of FIG. 33 showing a portion of coffee 41 for placing inside the coffee holder and a fourth holder lid 32 d with an insertable portion and an O-Ring 50 inside the coffee holder for sealing is shown in FIG. 34A, and a cross-sectional side view of the eighth coffee holder taken along line 34-34 of FIG. 33 showing the portion of coffee 41 inside the coffee holder 30 h and the holder lid 32 d with the insertable portion inserted into the coffee holder base 31 a is shown in FIG. 34B. The filter paper 40 extends up above the O-ring 50 and the O-Ring 50 cooperates with the holder lid 32 d to sandwich the top edge of the filter paper 40 for sealing the filter paper 40 to reduce or prevent the coffee 41 from escaping when the flow of hot water is provided to the coffee holder 30 h. The holder base 31 a is preferably cylindrical but may also be conical in shape.

A side view of a ninth coffee holder 30 i according to the present invention is shown in FIG. 35, a cross-sectional side view of the ninth coffee holder 30 i taken along line 36-36 of FIG. 35 showing a portion of coffee 41 for placing inside the coffee holder and a fifth holder lid 32 e with a threaded portion for screwing inside the holder base 31 b for sealing is shown in FIG. 36A, and a cross-sectional side view of the ninth coffee holder 30 i taken along line 36-36 of FIG. 35 showing the portion of coffee 41 inside the coffee holder and the holder lid 32 e with the threaded portion screwed into the coffee holder and tamping the coffee 41 is shown in FIG. 36B. The threads both provide tamping and sealing the coffee to reduce or prevent the coffee 41 from escaping when the flow of hot water is provided to the coffee holder 30 h. The holder base 31 b is preferably cylindrical to facilitate having internal threads, and at least the threaded portion is preferably cylindrical.

A third coffee maker 10 c having a coffee holder 30 according to the present invention for receiving a portion of coffee and a tamping spring 36 for tamping the coffee is shown in FIG. 37A, the third coffee maker 10 c with the coffee holder 30 holding the portion of coffee 41 is shown in FIG. 37B, and the third coffee maker 10 c with the coffee holder 30 holding the portion of coffee 41 with the coffee maker lid 14 closed for tamping the coffee 41 is shown in FIG. 37C. When the lid 14 is closed, the pad 17 pushes the coffee holder 30 down and the tamping spring 36 enters the bottom of the coffee holder 30 to tamp the coffee 41. While attaching the lid 32 a to the holder 30 is preferred in order to prevent coffee grounds from escaping the holder 30, the coffee maker 10 c may also be used without the lid 32 a and the pad 17 may serve to seal the coffee 41 in the holder 30. In this instance, the coffee maker lid 14 serves as a coffee holder lid.

A third coffee maker 10 c having a coffee holder for receiving a portion of coffee and tamping spring 36 attached to the coffee maker lid 14 according to the present invention for tamping the coffee 41 when the coffee maker lid 14 is closed is shown in FIG. 38A, the third coffee maker with the coffee holder 30 holding the portion of coffee 41 is shown in FIG. 38B, and the third coffee maker 10 c with the coffee holder 30 holding the portion of coffee 41 with the coffee maker lid 14 closed to push the tamping spring 36 into the coffee holder 30 for tamping the coffee 41 is shown in FIG. 38C.

A fourth coffee maker 10 d having a third holder base 31 c for receiving a packet 41 a containing untamped coffee, a knife 50 for cutting the packet 41 a open, and tamping spring 36 under the holder base 31 c according to the present invention for tamping the coffee when the coffee maker lid is closed is shown in FIG. 39A, the fourth coffee maker 10 d with the holder base 31 c holding the packet 41 a of untamped coffee is shown in FIG. 39B, and fourth coffee maker with the holder base 31 c holding the packet of tamped coffee 41 c with the coffee maker lid 14 closed to push the holder base down over the tamping spring 36 for tamping the coffee is shown in FIG. 39C. The coffee maker 10 d includes a somewhat pointed nozzle 19 a to puncture the packet 41 a to provide the flow of hot water to the tamped coffee in the packet 41 a. Known coffee packets include internal filters to allow a flow of hot water through the packet to make the coffee drink while preventing coffee grounds from escaping. The cut in the packet 41 a made by the knife 50 allows the coffee drink to escape from the packet while filter material in the packet 41 a prevent coffee grounds from escaping. The tamping spring 36 may also be attached to the lid 14 as in FIGS. 38A-38C.

The packet 41 a may be an air tight pod containing coffee in filter paper and positioning the knife on the side of the holder base 31 c results in less likelihood of the knife 50 cutting the filter paper. The packet 41 a is preferably air tight to maintain coffee freshness and may be plastic, metal foil, or other air tight material which is sufficiently flexible to allow the coffee contained in the packet 41 a to be tamped. Alternatively, the knife 50 may be eliminated when the packet 41 a is configured to burst under pressure to expose the coffee, for example, when the coffee maker tamps the coffee, the packet 41 a also bursts. In one embodiment, filter paper 41 is inserted into the holder base 31 c without the knife 50, and the packet 41 a bursts during compacting to release the coffee into the filter paper.

Known coffee makers use a sealed cup or capsule having a somewhat ridged cup with a foil cover. Such cups might be compressible and used in the coffee maker 10 d, however, a similar cup or capsule having a less ridged cup which may be compressed in the coffee maker 10 d are more suitable for use in the coffee maker 10 d to allow tamping of the coffee contained in the cup or capsule.

A fifth coffee maker 10 e for horizontally receiving the coffee holder 30 is shown in FIG. 40A, the fifth coffee maker with the coffee holder 30 residing in the coffee maker is shown in FIG. 40B, and the fifth coffee maker with the coffee maker lid 14 closed and the tamping spring 36 entering the coffee holder 30 for tamping the coffee 41 is shown in FIG. 40C. The fifth coffee maker 10 d may alternatively include a tamping spring entering the coffee holder top, or a resilient solid block pushed into the coffee holder 30 to tamp the coffee. Preferably, a horizontal ram 42 a is actuated when the lid 14 is closed and pushed the coffee holder 30 against the spring 36 to tamp the coffee. The horizontal ram 42 a may actuated by an electrical solenoid, by pressure, or by mechanical levers connected to the lid 14. The fifth coffee maker 10 e may further include any of the features described above for other embodiments of the coffee maker according to the present invention and may be configured to use any of the coffee holders described above according to the present invention.

A side view of a tenth coffee holder 30 j with straight walls according to the present invention is shown in FIG. 41, and a cross-sectional view of the tenth coffee holder 30 j taken along line 42-42 of FIG. 41 showing an empty coffee holder is shown in FIG. 42. The coffee holder 30 j provides straight cylindrical inside walls allowing a better fit between the top tamper 35 b and the inside walls to reduce or eliminate coffee 41 escaping past the top tamper 35 b during tamping.

A cross-sectional view of the tenth coffee holder 30 j taken along line 42-42 of FIG. 41 showing a full and tamped coffee holder is shown in FIG. 43. The tamping spring 36 has been pushed down by the lid 32 b to tamp the coffee 41.

A side view of an eleventh coffee holder 30 k with straight walls according to the present invention is shown in FIG. 44, a cross-sectional view of the eleventh coffee holder 30 k taken along line 45-45 of FIG. 44 showing an empty coffee holder is shown in FIG. 45, and a cross-sectional view of the eleventh coffee holder 30 k taken along line 45-45 of FIG. 41 showing a full and tamped coffee holder. As with the coffee holder 30 j, the coffee holder 30 k provides straight cylindrical inside walls allowing a better fit between the lid 32 f and the inside walls to reduce or eliminate coffee 41 escaping past the lid 32 f during tamping. The lid 32 f may be used with or without the top tamper 35 b.

A side view of a top tamper 35 b is shown in FIG. 47A and a top view of the top tamper 35B is shown in FIG. 47B. A side view of a top tamper 35 b′ with a seal 60 according to the present invention is shown in FIG. 47C and a top view of the top tamper 35 b′ with the seal 60 is shown in FIG. 47D. In some instances, for example with a very fine ground coffee, an amount of coffee may escape past the top tamper 35 b. In such instances, a user may prefer to use the top tamper 35 b′ with the seal 60 to reduce or eliminate the escape of the coffee.

A perspective view of a filter paper cup 40′ with a folding cup lid 40 d is shown in FIG. 48 (also see FIG. 7C). The cup lid 40 d may be folded over the rim 40 c to reduce or prevent coffee from escaping during tamping of subsequent processing. The lid 40 d may also include a perforation 40 e centered on the lid 40 d allowing the nozzle 19 to enter and/or inject the hot flow of water into the tamped coffee 41, but in some embodiments, the lid 40 d does not include the perforation 40 e. The filter paper cup 40′ may be used in the coffee containers described herein, and may able be used in a coffee machine having a cavity for receiving the filter paper cup 40′. While the cup 40′ is preferably made from filter paper, the cup may also be made from a reusable mech.

A side view of an twelfth coffee holder 30 l with straight walls according to the present invention is shown in FIG. 49, and a cross-sectional view of the twelfth coffee holder 30 l taken along line 50-50 of FIG. 49 showing an empty coffee holder is shown in FIG. 50. The twelfth coffee holder 30 l includes a straight walled base and the tamping spring below the coffee, and additionally uses a filter paper cup 40′ with the folding lid 40 d.

A cross-sectional view of the twelfth coffee holder 30 l taken along line 50-50 of FIG. 49 showing the lid 32 a, coffee 41, the filter paper cup 40′ with lid 40 d, above the coffee holder base 31 a is shown in FIG. 51A, a cross-sectional view of the twelfth coffee holder 30 l taken along line 50-50 of FIG. 49 showing the lid 32 a, above the coffee 41 and the filter paper cup 40′ resting in the coffee holder base 31 a is shown in FIG. 51B, a cross-sectional view of the twelfth coffee holder 30 l taken along line 50-50 of FIG. 49 showing the lid 32 a, above the coffee 41 and the filter paper cup 40′ resting in the coffee holder base 31 a with the filter paper cover 40 d folded over the coffee 41 in the filter paper cup 40′ is shown in FIG. 51C, and a cross-sectional view of the twelfth coffee holder 30 l taken along line 50-50 of FIG. 49 showing the lid 32 a attached to the base 31 a with the coffee 41 and the filter paper cup 40′ residing in the coffee holder base 31 a with the coffee 41 tamped is shown in FIG. 51D. In embodiments with the coffee 41 partially exposed above the base 31 a, some coffee 41 may escape during tamping. Using the filter paper cup 40′ having the fold over paper lid 40 d reduces or eliminates such escape of coffee 41.

A side view of a thirteenth coffee holder 30 m with a releaseable tamping latch 64 according to the present invention is shown in FIG. 52 and a cross-sectional view of the thirteenth coffee holder 30 m taken along line 53-53 of FIG. 52 showing an empty coffee holder is shown in FIG. 53. The latch 64 is held in a latched position by a spring loaded lever 62 on the exterior of the base 31 a.

A cross-sectional view of the thirteenth coffee holder 30 m taken along line 53-53 of FIG. 52 showing the lid 32 a, coffee 41, the filter paper cup 40, above the base 31 a, and the coffee holder base 31 a, with the tamping latch 64 retaining the bottom tamper 34 is shown in FIG. 54A, a cross-sectional view of the thirteenth coffee holder 30 m taken along line 53-53 of FIG. 52 showing the lid 32 a above the coffee 41 and the filter paper cup 40 resting in the coffee holder base 31 a, with the tamping latch 64 retaining the bottom tamper 34 is shown in FIG. 54B, a cross-sectional view of the thirteenth coffee holder 30 m taken along line 53-53 of FIG. 52 showing the lid 32 a, above the coffee 41 and the filter paper cup 40 resting in the coffee holder base 31 a with the tamping latch 64 retaining the bottom tamper 34 is shown in FIG. 54C, and a cross-sectional view of the fourteenth coffee holder 30 m taken along line 53-53 of FIG. 52 showing the lid 32 a attached to the base 31 a with the coffee 41 and the filter paper cup 40 residing in the coffee holder base 31 a with tamping latch 64 released and the coffee 41 tamped is shown in FIG. 54D. The lever 62 thus holds the latch 64 until the lever 62 is pushed to release the latch 62 to release the bottom tamper 34 to tamp the coffee 41.

A side view of a fourteenth coffee holder 30 n with a releaseable tamping latch 64 according to the present invention is shown in FIG. 55 and a cross-sectional view of the fourteenth coffee holder taken along line 56-56 of FIG. 55 showing an empty coffee holder is shown in FIG. 56. The lever 62 holds the latch 64 until the arm 66 attached to the lid 32 g pushes the lever 62 to release the latch 64.

A cross-sectional view of the fourteenth coffee holder 30 n taken along line 56-56 of FIG. 55 showing the lid 32 g, coffee 41,and the filter paper cup 40, above the coffee holder base 31 a, with the tamping latch 64 retaining the bottom tamper 34 is shown in FIG. 57A, a cross-sectional view of the fourteenth coffee holder 30 n taken along line 56-56 of FIG. 55 showing the lid 32 g above the coffee 41 and the filter paper cup 40 resting in the coffee holder base 31 a, with the tamping latch 64 retaining the bottom tamper 34 is shown in FIG. 57B, a cross-sectional view of the fourteenth coffee holder 30 n taken along line 56-56 of FIG. 55 showing the lid 32 g, above the coffee 41 and the filter paper cup 40 resting in the coffee holder base 31 a with the tamping latch 64 released but just prior to tamping (the bottom tamper has been released but has not moved upward against the coffee 41) is shown in FIG. 57C, and a cross-sectional view of the fourteenth coffee holder 30 n taken along line 56-56 of FIG. 55 showing the lid 32 g attached to the base with the coffee 41 and the filter paper cup 40 residing in the coffee holder base 31 a with tamping latch 64 released and the coffee 41 tamped is shown in FIG. 57D. The lever 62 thus holds the latch 64 until the lever 62 is pushed by the arm 66 to release the latch 62 to release the bottom tamper 34 to tamp the coffee 41.

A side view of a fourteenth coffee holder 30 o with a releaseable tamping lock according to the present invention is shown in FIG. 58 and a cross-sectional view of the fourteenth coffee holder 30 o taken along line 59-59 of FIG. 58 showing an empty coffee holder is shown in FIG. 59. The coffee holder 30 o includes a tamping lock 70 which engages a second bottom tamper 34′ to hold the second bottom tamper in a down position for filling the coffee holder with coffee and releases the bottom tamper 34′ to be pushed upwards by the tamping spring 36 to tamp the coffee after the holder lid 32 b is attached to the base 31 a.

A cross-sectional view of the fourteenth coffee holder 30 o taken along line 59-59 of FIG. 58 showing a lid 32 b, coffee 41, a filter paper cup 40, above the coffee holder base 31, with the tamping lock 70 retaining the bottom tamper 34′ is shown in FIG. FIG. 60A, cross-sectional view of the fourteenth coffee holder taken along line 59-59 of FIG. 58 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base, with the tamping latch retaining the bottom tamper 34′ is shown in FIG. FIG. 60B, a cross-sectional view of the fourteenth coffee holder taken along line 59-59 of FIG. 58 showing the lid, above the coffee and the filter paper cup resting in the coffee holder base prior to tamping is shown in FIG. 60A, and a cross-sectional view of the fourteenth coffee holder taken along line 59-59 of FIG. 58 showing the lid 32 b attached to the base 31 a with the coffee 41 and the filter paper cup 41 residing in the coffee holder base 31 a with tamping lock released and the coffee tamped is shown in FIG. 60D.

A top view of a tamping lock 70 according to the present invention is shown in FIG. 61 and a bottom view of a second bottom tamper 34′ which cooperates with the tamping lock 70 according to the present invention is shown ion FIG. 62. The tamping lock 70 includes teeth 72 which are inserted between and turned to engage lips 74 on the bottom of the bottom tamper 34′ to hold the bottom tamper in the down position for filling the coffee holder 30 o with coffee 41. After the coffee holder 30 o is filled with coffee and the holder lid 32 b attached, the tamping lock is twisted to release the bottom tamper 32 b to tamp the coffee.

A side view of a filter cup 80 according to the present invention is shown in FIG. 63A and a top view of the filter cup 80 is shown in FIG. 63B. The filter cup 80 includes a ring 84 made a of a material sufficiently strong to hold shape in the proposed use. Filter material 82 is attached to the ring 84. The filter cup 80 is insertable into the coffee holder and in many embodiments is a replacement for the filter paper cup 40.

While the present invention is described above as placing loose coffee in a coffee holder, the invention may also be practiced by placing prepackaged coffee, for example coffee pods, into the coffee holder. Further, while the coffee holder is generally described as having a snap on lid, a screw on lid may also be used, and in general the various elements of different embodiments described above may be mixed to provide new embodiments and such new embodiments are intended to come within the scope of the present invention.

Further, many embodiments are described as including a coffee chamber comprising a filter paper cup. In many cases, a filter cup made of nylon mesh or metal mesh is equally suitable, and any coffee holder or combination of coffee maker and coffee holder including a filter chamber which holds coffee and allows the coffee to be tamped as described above is intended to come within the scope of the present invention regardless of the specific filter material.

While the invention herein disclosed has been described by means of specific embodiments and applications thereof, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope of the invention set forth in the claims. 

1. A self tamping coffee holder comprising: a coffee holder base for receiving a portion of untamped coffee; a holder lid closing the coffee holder after receiving the untamped coffee in the coffee holder; and a tamper element of the coffee holder advancing inside the coffee holder to tamp the untamped coffee inside the coffee holder.
 2. The self tamping coffee holder of claim 1, wherein the tamper includes a tamping spring.
 3. The self tamping coffee holder of claim 2, wherein the tamping spring resides under the untamped coffee inside the holder base and attaching the holder lid to the coffee holder sandwiches the coffee between the holder lid and the tamping spring to tamp the coffee.
 4. The self tamping coffee holder of claim 3, wherein the holder lid includes a small passage allowing entry of a nozzle into the coffee holder but not entry of tamping apparatus into the coffee holder.
 5. The self tamping coffee holder of claim 2, wherein the tamping spring resides over the untamped coffee.
 6. The self tamping coffee holder of claim 5, wherein the tamping spring is attached to the holder lid and attaching the holder lid to the holder base sandwiches the coffee between the holder base and the tamping spring to tamp the coffee.
 7. The self tamping coffee holder of claim 1, wherein the tamper is a recessed portion of the holder lid which enters the holder base when the holder lid is attached to a holder base to sandwich the coffee between the holder base and the recessed portion of the holder lid to tamp the coffee.
 8. The self tamping coffee holder of claim 7, wherein the holder lid includes a male threaded portion and the holder base includes a female threaded portion and the holder lid is attached to the holder base by screwing the holder lid into the holder base and the coffee is sandwiched between the male threaded portion and the holder base to tamp the coffee.
 9. The self tamping coffee holder of claim 2, further including a filter paper cup lining the interior of the holder base.
 10. The self tamping coffee holder of claim 9, wherein the filter paper cup includes a top rim portion reaching above and outwardly from the interior of the holder base for sandwiching between the holder base and the holder lid to seal the coffee holder.
 11. The self tamping coffee holder of claim 10, wherein the engagement of the holder lid with the holder base sandwiches the top rim portion of the filter paper cup to secure the filter paper cup.
 12. The self tamping coffee holder of claim 2, wherein the tamping spring resides in the bottom of the holder base and a bottom tamper supported by the tamping spring, and the coffee holder further including a latch for holding the bottom tamper in a down position and releasing the bottom tamper to tamp the coffee after the coffee is in the coffee holder and the holder lid is attached.
 13. The self tamping coffee holder of claim 12, further including a lever for holding the latch in a first position retaining the bottom tamper, wherein a user may press the lever to release the latch to tamp the coffee.
 14. The self tamping coffee holder of claim 12, further including a lever for holding the latch in a first position retaining the bottom tamper and an arm extending down from the holder lid, wherein attaching the holder lid to the holder base presses the arm against the lever to release the latch to tamp the coffee.
 15. A self tamping coffee holder comprising: a holder base; a filter cup residing in the interior of the holder base for receiving a portion of untamped coffee; a top rim portion of the filter cup reaching above and outwardly from the interior of the holder base; a holder lid closing the holder base after receiving the untamped coffee in the coffee holder, engagement of the holder lid with the holder base sandwiching the top rim portion of the filter paper cup and secures the filter paper cup; and a tamping spring inside the coffee holder under the coffee to sandwich the coffee between a bottom tamper and the holder lid to tamp the untamped coffee inside the holder base when the holder lid is attached.
 16. The self tamping coffee holder of claim 15, wherein the filter cup includes a rim and a filtering material attached to the rim and forming a concave surface for holding coffee.
 17. The self tamping coffee holder of claim 15, wherein the filter cup is made from filter paper.
 18. A self tamping coffee holder comprising: a holder base; a filter chamber residing in the interior of the holder base for receiving a portion of untamped coffee; a top rim portion of the filter cup reaching above the interior of the holder base; a holder lid closing the holder base after receiving the untamped coffee in the coffee holder; and a recessed portion of the holder lid reaching inside the holder base to tamp the untamped coffee inside the filter chamber when the holder lid is attached.
 19. The self tamping coffee holder of claim 18, wherein the filter chamber comprises a filter cup including a rim and a filtering material attached to the rim and forming a concave chamber for holding the coffee.
 20. The self tamping coffee holder of claim 18, wherein the filter chamber comprises a filter cup made from filter paper sandwiched between the holder lid and the holder base. 